Question about Bosch 1250DEVS, 6" Dual - Mode Variable Speed Random Orbit Sander Polisher

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Bosch 1250 devs stopped rotating just makes bussing sound

Stopped rotating just makes bussing sound, replaced speed control switch was not the problem

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  • tom aspros Jan 20, 2013

    problem started with the fiber gear used when in high removal mode dissinagrated filling up the gear box then the bearing attached to that assembly went out. a 100.00 + fix.

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Check for worn out brushes and damaged armature.

Posted on Apr 25, 2013

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6ya6ya
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Posted on Jan 02, 2017

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Bosch rh540m Hamer will not work variable speed control has been replaced


Hello Richard,
I see you have already replaced the speed control for this drill.
It looks likea nice piece of kit, anyway since the power comes from the switch / speed controller , through the first field winding then the brush on one side of the rotor, through the rotor, through the brush on the opposite side of the rotor, then through the second half of the field winding and returns to the switch (or) neutral, it is easyto check for continuity.
Because it does nothing when you press the trigger it sounds like a break in the motor circuit.
I hope you have checked that the cable itself is not broken internally
this happens very frequently near to the drill, where it gets the most bending and twisting.
Using a multimeter set on Ohms you can place one probe t the output from the switch (make sure that it is unplugged ) the other proe on the return side wiring, you souldget a reading of only few Ohms, if not then you can start to to trace through the individual parts. I will assume here that you have done the same for each cor of the mains cable.
For pictures of universal motors just bing or google (universal motor circuits)

Best regards,
Dave Reynolds.

Feb 11, 2017 | Bosch Drills

1 Answer

Where is the body control module on 2006 HHR


Body Control Module (BCM)
Under the I/P below the radio on the right side of the center console.
Do you know what the purpose of the BCM is ?
The body control module (BCM) has a bussed electrical center integrated into the housing. Body control relays and fuses are installed directly on the BCM, which simplifies wiring and junction blocks on the vehicle. The body control system consists of the BCM and its associated controls. Battery positive voltage is provided to the BCM from IBCM BATT 1 fuse and the IBCM BATT 2 fuse in the underhood fuse block. The module grounds are wired to ground G201, G203 and G305. The BCM is wired to the GMLAN High speed serial data buss, and the GMLAN Low speed serial data buss, as well as discrete input and output terminals to control the functions of the vehicle's body.
Serial Data Gateway
The body control module (BCM) in this vehicle functions as a translator between the High and Low speed GMLAN busses. The 2 communication protocols use the BCM to translate communicated serial data messages between the control modules over the 2 serial data busses.
Power Mode Master
This vehicles body control module (BCM) functions as the power mode master (PMM). Refer to Power Mode Description and Operation for a complete description of power mode functions.
Serial Data Power Mode Master
On vehicles that have several control modules connected by serial data circuits, one module is the power mode master (PMM). On this vehicle, the PMM is the body control module (BCM). The PMM receives 3 discrete ignition switch signals to differentiate which power mode will be sent over the Serial Data circuits. The 3-wire Ignition Switch table below illustrates the state of these inputs in correspondence to the ignition switch position:
Relay Controlled Power Mode
The body control module (BCM) uses the discrete ignition switch inputs Off/Run/Crank, Accessory, and ignition 1, to distinguish the correct power mode. The ignition 1 circuit is also routed to the Run/Crank relay for relay controlled power feeds during the appropriate power mode. The BCM, after determining the desired power mode, will activate the appropriate relays for that power mode.
Reprogram the body control module (BCM) after replacement. Refer to Control Module References .




Do you

Sep 24, 2015 | Cars & Trucks

1 Answer

Codes for a dish dvr 625


Visit the site named 'Electro-help' for more details. Click this link. View it in "Timeslide" or "Flipcard" option, which can be selected from the drop down box menu by the [Sidebar] tag, at the top left corner of the display window. It will make search easy. There are more than 1250 posts to different brand TVs now. Pull up older posts there.

Nov 21, 2012 | RCA 3-dev Universal Remote Remote Control

1 Answer

Variable speed not working


The variable speed function is controlled by the switch. If you only have off and full on, the only fix is to replace the switch (Bosch Part Number 2607202013).

Mar 14, 2012 | Bosch 23618 18V Cordless Impactor...

1 Answer

2004 chevy malibu ignition switch


How would you like it if you replaced the switch an that wasn't the problem ? That is very possible without knowing for sure if that is the problem . Testing the electrical supply to the switch an out of the switch is the proper way to diagnose this problem. Plus the ignition switch is just a input to the BCM - body control module . The BCM is really in charge of what mode to put the vehicle in . Your best bet , take it to a qualified repair shop .

The body control module (BCM) has a bussed electrical center integrated into the housing. Body control relays and fuses are installed directly on the BCM, which simplifies wiring and junction blocks on the vehicle. The body control system consists of the BCM and its associated controls. Battery positive voltage is provided to the BCM from IBCM BATT 1 fuse and the IBCM BATT 2 fuse in the underhood fuse block. The module grounds are wired to ground G201, G203 and G305. The BCM is wired to the GMLAN High speed serial data buss, and the GMLAN Low speed serial data buss, as well as discrete input and output terminals to control the functions of the vehicle's body .
Serial Data Gateway
The body control module (BCM) in this vehicle functions as a translator between the High and Low speed GMLAN busses. The 2 communication protocols use the BCM to translate communicated serial data messages between the control modules over the 2 serial data busses.

Normal vehicle serial data communications and the control modules operations will not begin until the system power mode has been identified. Discrete wires from the ignition switch contacts are monitored by a module which acts as the power mode master (PMM) in order to determine the correct power mode. The module which is the PMM communicates the system power mode to all modules on the serial data lines. Refer to Body Control System Description and Operation to identify which module is the PMM and the applicable power mode look up table.

The one that said you may need an ignition switch has no clue as to what's up !
Install a scan tool.
Turn OFF the ignition.
With a scan tool, under Vehicle Control Systems, Computer/Integrating Systems, BCM Data menu observe the Power Mode parameter.
Does the displayed power mode parameter match the actual ignition switch position?
Go to Step 2
Go to Step 6
2
Turn the ignition switch to the UNLOCK position.
With a scan tool, under Vehicle Control Systems, Computer/Integrating Systems, BCM Data menu observe the Power Mode parameter.
Does the displayed power mode parameter match the actual ignition switch position?

May 30, 2017 | Cars & Trucks

1 Answer

I have a Bosch 1/2"


Sounds as though you are on the right track. I would take it apart, and see if the trigger could have some dirt or other material causing it to stick, or is it worn to the point that it needs to be replaced. Good luck!

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Bosch 4000 table saw will not start. I changed the switch and still won't start, not even a sound. The saw is relatively new, and the outlet works. What should I try next?


A real Weakness of this saw is sawdust and debri entering the cooling ports of the motor causing intermittent contact of brushes which damages the motor speed control board ($40.00). Don't ever operate this saw with out a vacuum saw dust extraction system. Also when you replace the Speed control board also replace the Brushes ($6.00). It helps extend the operational life of the motor components to blow out the contaminants regularly with compressed air through the motor cooling ports (turn off saw first).
You can bypass the speed control board (if you want to disable this wonderful engineering feature by attaching black and white power wires directly to the black and white wires to motor.

Feb 22, 2010 | Bosch 4000 - 07 Electric Table Saws

1 Answer

Turn signals won't work and ignition busser won't stop


see if the 4 way (hazard) lights work. if they do then you may have bad turn signal switch or something in that switch, power or ground, is not getting where it needs to go. most manufacturers call that part a multifunction switch because it controls turn signals, headlights, usually some other stuff too. you should make sure you don't have a blown fuse in your turn signal circuit too. not sure i know what the ignition buss is. hope this helps

May 23, 2009 | 1989 Honda CRX

2 Answers

I have a bosch rotary hammer 11245evs and it was working when i put it away in its case, now it will not hammer. Drills ok. larry


They are filled with a special grease that comes from Bosch. It sounds like the impact bolt or the striker pin in the unit are not moving the way they should. These are the pieces that work together to create the hitting action. About all that can be done now is the unit has to be dismantled to get those to pieces moving again. Bosch makes what they call service packs for all thier hammers. They have all the o-rings and grease to get your hammer working again. A Bosch service center can supply you with the kit. Ask for P/N 1617000225, or they can take care of it for you.
Hope this helps

Apr 16, 2009 | Bosch 11241EVS SDS-Max Rotary Hammer

1 Answer

Afficio 450 or gestetner 3245 calibration


Dev. Change Process

1. Check that Dev. unit has the lastest seals.
2. replace dev. material.
3. Dump dev.
4. add new dev. material.
5. Hand rotate the dev. unit 10 times.
6. reinstall the dev. unit into machine.
7. cover the toner inlet opening with a piece of paper
8. insert PCU unit.
9. turn the machine on.
10. When machine reaches ready -- enter SP modes and perform SP-2801 (2 times)
11. open the right cover of the machine. Cheat the right cover switch. Examine the drum as it rotates. Afew bands of toner and the ID pattern will be developed on the drum. The drum should be clean -- a slight dusting on the drum is OK.
12. Perform SP-3001 -- ID sensor initial setting.
13. ** Important** remove the PCU unit. Empty the toner from the PCU by sliding the shutter on the bottom of the PCU to the side and tapping the PCU.
14. reinstall the PCU.
15. Run test copies.

Pls rate -- thank you

Mar 02, 2009 | Ricoh Aficio 450 Copier

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